Download or read book Guide to Voice and Video over IP written by Lingfen Sun and published by Springer Science & Business Media. This book was released on 2013-01-12 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a review of the latest advances in speech and video compression, computer networking protocols, the assessment and monitoring of VoIP quality, and next generation network architectures for multimedia services. The book also concludes with three case studies, each presenting easy-to-follow step-by-step instructions together with challenging hands-on exercises. Features: provides illustrative worked examples and end-of-chapter problems; examines speech and video compression techniques, together with speech and video compression standards; describes the media transport protocols RTP and RTCP, as well as the VoIP signalling protocols SIP and SDP; discusses the concepts of VoIP quality of service and quality of experience; reviews next-generation networks based on the IP multimedia subsystem and mobile VoIP; presents case studies on building a VoIP system based on Asterisk, setting up a mobile VoIP system based on Open IMS and Android mobile, and analysing VoIP protocols and quality.

Download or read book Packet Guide to Voice Over IP written by Bruce Hartpence and published by "O'Reilly Media, Inc.". This book was released on 2013 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A system administrator's guide to VoIP technologies"--Cover.

Download or read book Packet Guide to Voice Over IP written by Bruce Hartpence and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Go under the hood of an operating Voice over IP network, and build your knowledge of the protocols and architectures used by this Internet telephony technology. With this concise guide, you{u2019}ll learn about services involved in VoIP and get a first-hand view of network data packets from the time the phones boot through calls and subsequent connection teardown. With packet captures available on the companion website, this book is ideal whether you{u2019}re an instructor, student, or professional looking to boost your skill set. Each chapter includes a set of review questions, as well as practical, hands-on lab exercises. Learn the requirements for deploying packetized voice and video Understand traditional telephony concepts, including local loop, tip and ring, and T carriers Explore the Session Initiation Protocol (SIP), VoIP{u2019}s primary signaling protocol Learn the operations and fields for VoIP{u2019}s standardized RTP and RTCP transport protocols Delve into voice and video codecs for converting analog data to digital format for transmission Get familiar with Communications Systems H.323, SIP{u2019}s widely used predecessor Examine the Skinny Client Control Protocol used in Cisco VoIP phones in networks around the world.

Download or read book Implementing Voice over IP written by Bhumip Khasnabish and published by John Wiley & Sons. This book was released on 2003-08-01 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Im Mittelpunkt der Diskussion stehen hier existierende und neue Technologien für die Vermittlung von Sprachverkehr über das Internet Protocol (IP). - bis vor kurzem stammte der Datenverkehr über Kommunikationsnetzwerke größtenteils aus herkömmlich vermittelten Telefonverbindungen - zukünftig wird dieser Sprachverkehr durch ein riesiges Volumen paketvermittelter Daten (Text- und Audiodateien, Streaming Video usw.) weit in den Schatten gestellt; Telefongespräche werden dann über Internetprotokolle vermittelt - hier erhalten Sie eine detaillierte Einführung in den Aufbau eines effizienten VoIP-Netzwerkes - erläutert Prototyping und Leistungsmessung in solchen Netzwerken - besprochen werden auch Aspekte des Quality-of-Service (QoS)

Download or read book Voice Video and Data Network Convergence written by Juanita Ellis and published by Elsevier. This book was released on 2003-09-11 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers the latest standards and those being developed in an ever-evolving field Provides insight into the latest technology of video and data over wireless networks and how convergence will be a driving force in this industry Provides an understanding of the true capabilities behind each vendor's solution to allow for informed buying decisions A recent survey of 500 U.S. companies with multiple locations found that 81% are planning to implement IP Telephony on their local area networks (LANs) in 2003, and two-thirds are looking at convergence for their wide area networks (WANs) as well. This includes voice, video and data over hard line and wireless networks. Today, new standards and technologies are being developed to support convergence and voice over IP (VoIP) and Video over IP and wireless. Because convergence covers the voice and data world, it will be critical to understand all of these environments. Voice, Video, and Data Network Convergence provides detailed information on convergence network models, protocol stacks, routing algorithms, gateways and switches required to support these networks. Covers the latest standards and those being developed in an ever-evolving field Provides insight into the latest technology of video and data over wireless networks and how convergence will be a driving force in this industry Provides an understanding of the true capabilities behind each vendor's solution to allow for informed buying decisions

Download or read book VoIP Telephony and You written by Rashmi Nanda and published by BPB Publications. This book was released on 2021-05-10 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Game Changer for WFH Practitioners Ê KEY FEATURESÊÊ _ Get to know the challenges and benefits of VoIP. _ Explore in-depth coverage on methodologies of the VoIP system. _ Includes the VoIP economic model, technology model, and in-practices. DESCRIPTIONÊ ÔVoIP Telephony and YouÕ introduces you to new and advanced ways of communicating over traditional telephony realms. Telcos use public internet private IPs for this long-distance voice communication in the Covid era. This book describes how VoIP encompasses the capability to encode and deliver content in real-time across digitized networks. In this book, you will learn about VoIP regulations, VoIP hardware and software, video conferencing servers, SWOT analysis of Telcos, switching technology. You will also learn about the TCP/IP, market, Economics model, business model, and technology models. You will learn how to eliminate echo by understanding the various interfaces of VoIP and a number of digital protocols.This book will also provide you with a solution to design and maintain communication systems that can be used reliably in the Covid-19 times. This book includes several best practices and security measures to secure conversations by use of surveillance methods and VoIP security provisions.ÊÊ WHAT YOU WILL LEARN _ Learn to establish a strong and robust digital communication for WFH business operations. _ Explore and evaluate buyingÊ decisions between cloud-based phones and other VoIP devices. _ Learn to optimize utilization of the VoIP telephony devices for audio and video conferencing. WHO THIS BOOK IS FORÊÊ This book is for aspiring and current technicians, network administrators, engineers, IT managers, VoIP integrators and solution providers, mobile experts, and WFH practitioners. TABLE OF CONTENTS 1. Introduction to Voice over Internet Protocol (VoIP) 2. VoIP Video Conferencing and Corona Virus 3. VoIPÕs Challenges and Benefits and VoIP MarketÕs Independent Providers 4. Overview of Systems-Level 5. Interfaces of VoIP Telephony 6. Assurance of Voice Quality for VoIP Networks 7. Implementation of VoIP Security 8. Functionality of a Data Router 9. Technical Description related to VoIP 10. VoIP Hardware and Software Components 11. Business Model and Market Model in relation with Internet Telephony 12. Technology, Economics and In-Practice to be concerned with IP telephony 13. VoIP to be Concluded

Download or read book Cisco Voice Over Frame Relay ATM and IP written by Steve McQuerry and published by Cisco Press. This book was released on 2001 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: Authorized self-study guide for voice over data network foundation learning This book will help you to: Configure Voice over Frame Relay, ATM, or IP using Cisco IOS(r) software Analyze existing voice hardware/software, and select the Cisco multiservice access devices that best serve your needs Analyze existing branch and regional office voice networks and services, and choose the optimum transmission method for voice traffic: Frame Relay, ATM, or IP Learn the fundamentals of VoFR, VoATM, and VoIP standards, protocols, and the Cisco hardware that supports these services Learn the basics of the Architecture for Voice, Video, and Integrated Data (AVVID) including CallManager, Cisco IP Phones, and related voice gateway equipment Design, configure, integrate, and optimize an enterprise network in remote branch and regional offices by using integrated access technology that combines voice and data transmission over Frame Relay, ATM, and IP connections, access devices, and CIPT client hardware Learn the fundamentals of PBXs, and apply the principles and concepts to develop a process for integrating Cisco equipment with PBXs and for replacing PBXs Cisco Voice over Frame Relay, ATM, and IPteaches you the Cisco solutions for voice technology (VoIP, VoFR, VoATM). This complete solutions guide helps you analyze existing voice hardware and software and select the Cisco multiservice access devices that best serve the needs of your network environment. In addition to learning how to design, configure, integrate, and optimize networks in remote branch and regional offices, this book also provides you with a fundamental understanding of PBXs, enabling you to develop a process for integrating Cisco equipment with or replacing PBXs. Cisco Voice over Frame Relay, ATM, and IPprepares you for voice and data integration by teaching you how to install and configure Cisco voice and data network routers; how to configure Cisco voice-enabled equipment for Voice over Frame Relay, ATM, and IP; how to configure voice ports, dial peers, and special commands to enable voice transmission over a data network; and how to perform voice traffic analysis to determine how to improve the quality of service (QoS) for delay-sensitive voice traffic. This book features actual router output and configuration examples to aid in the discussion of the configuration of these technologies. At the end of each chapter your comprehension is tested by review questions. Cisco Voice over Frame Relay, ATM, and IP has all of the tools you need to vastly improve your understanding of the Cisco solution to voice networking needs. Cisco Voice over Frame Relay, ATM, and IPis part of a recommended self-study program from Cisco Systems(r) that includes simulation and hands-on training from authorized Cisco Learning Partners, and self-study products from Cisco Press. To find out more about instructor-led, e-learning, and hands-on instruction offered by authorized Cisco Learning Partners, please visit www.cisco.com/go/authorizedtraining. This volume is in the Certification Self-Study Series offered by Cisco Press(r). Books in this series provide officially developed self-study solutions to help networking professionals understand technology implementations and prepare for the Cisco Career Certifications examinations.

Download or read book VoIP and Unified Communications written by William A. Flanagan and published by John Wiley & Sons. This book was released on 2012-02-27 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Translates technical jargon into practical business communications solutions This book takes readers from traditional voice, fax, video, and data services delivered via separate platforms to a single, unified platform delivering all of these services seamlessly via the Internet. With its clear, jargon-free explanations, the author enables all readers to better understand and assess the growing number of voice over Internet protocol (VoIP) and unified communications (UC) products and services that are available for businesses. VoIP and Unified Communications is based on the author's careful review and synthesis of more than 7,000 pages of published standards as well as a broad range of datasheets, websites, white papers, and webinars. It begins with an introduction to IP technology and then covers such topics as: Packet transmission and switching VoIP signaling and call processing How VoIP and UC are defining the future Interconnections with global services Network management for VoIP and UC This book features a complete chapter dedicated to cost analyses and payback calculations, enabling readers to accurately determine the short- and long-term financial impact of migrating to various VoIP and UC products and services. There's also a chapter detailing major IP systems hardware and software. Throughout the book, diagrams illustrate how various VoIP and UC components and systems work. In addition, the author highlights potential problems and threats to UC services, steering readers away from common pitfalls. Concise and to the point, this text enables readers—from novices to experienced engineers and technical managers—to understand how VoIP and UC really work so that everyone can confidently deal with network engineers, data center gurus, and top management.

Download or read book Switching to VoIP written by Theodore Wallingford and published by "O'Reilly Media, Inc.". This book was released on 2005 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: More and more businesses today have their receive phone service through Internet instead of local phone company lines. Many businesses are also using their internal local and wide-area network infrastructure to replace legacy enterprise telephone networks. This migration to a single network carrying voice and data is called convergence, and it's revolutionizing the world of telecommunications by slashing costs and empowering users. The technology of families driving this convergence is called VoIP, or Voice over IP. VoIP has advanced Internet-based telephony to a viable solution, piquing the interest of companies small and large. The primary reason for migrating to VoIP is cost, as it equalizes the costs of long distance calls, local calls, and e-mails to fractions of a penny per use. But the real enterprise turn-on is how VoIP empowersbusinesses to mold and customize telecom and datacom solutions using a single, cohesive networking platform. These business drivers are so compelling that legacy telephony is going the way of the dinosaur, yielding to Voice over IP as the dominant enterprise communications paradigm. Developed from real-world experience by a senior developer, O'Reilly's Switching to VoIP provides solutions for the most common VoIP migration challenges. So if you're a network professional who is migrating from a traditional telephony system to a modern, feature-rich network, this book is a must-have. You'lldiscover the strengths and weaknesses of circuit-switched and packet-switched networks, how VoIP systems impact network infrastructure, as well as solutions for common challenges involved with IP voice migrations. Among the challenges discussed and projects presented: building a softPBX configuring IP phones ensuring quality of service scalability standards-compliance topological considerations coordinating a complete system ?switchover? migrating applications like voicemail and directoryservices retro-interfacing to traditional telephony supporting mobile users security and survivability dealing with the challenges of NAT To help you grasp the core principles at work, Switching to VoIP uses a combination of strategy and hands-on "how-to" that introduce VoIP routers and media gateways, various makes of IP telephone equipment, legacy analog phones, IPTables and Linux firewalls, and the Asterisk open source PBX software by Digium.You'll learn how to build an IP-based or legacy-compatible phone system and voicemail system complete with e-mail integration while becoming familiar with VoIP protocols and devices. Switching to VoIP remains vendor-neutral and advocates standards, not brands. Some of the standards explored include: SIP H.323, SCCP, and IAX Voice codecs 802.3af Type of Service, IP precedence, DiffServ, and RSVP 802.1a/b/g WLAN If VoIP has your attention, like so many others, then Switching to VoIP will help you build your own system, install it, and begin making calls. It's the only thing left between you and a modern telecom network.

Download or read book Packet Guide to Voice over IP written by Bruce Hartpence and published by "O'Reilly Media, Inc.". This book was released on 2013-02-26 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Go under the hood of an operating Voice over IP network, and build your knowledge of the protocols and architectures used by this Internet telephony technology. With this concise guide, you’ll learn about services involved in VoIP and get a first-hand view of network data packets from the time the phones boot through calls and subsequent connection teardown. With packet captures available on the companion website, this book is ideal whether you’re an instructor, student, or professional looking to boost your skill set. Each chapter includes a set of review questions, as well as practical, hands-on lab exercises. Learn the requirements for deploying packetized voice and video Understand traditional telephony concepts, including local loop, tip and ring, and T carriers Explore the Session Initiation Protocol (SIP), VoIP’s primary signaling protocol Learn the operations and fields for VoIP’s standardized RTP and RTCP transport protocols Delve into voice and video codecs for converting analog data to digital format for transmission Get familiar with Communications Systems H.323, SIP’s widely used predecessor Examine the Skinny Client Control Protocol used in Cisco VoIP phones in networks around the world

Download or read book CCNP TSHOOT 642 832 Official Cert Guide written by Kevin Wallace and published by Cisco Press. This book was released on 2010-02-11 with total page 613 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the eBook version of the print title. Note that the eBook does not provide access to the practice test software that accompanies the print book. Trust the best selling Official Cert Guide series from Cisco Press to help you learn, prepare, and practice for exam success. They are built with the objective of providing assessment, review, and practice to help ensure you are fully prepared for your certification exam. Master CCNP® TSHOOT 642-832 exam topics Assess your knowledge with chapter-opening quizzes Review key concepts with Exam Preparation Tasks CCNP TSHOOT 642-832 Official Certification Guide is a best-of-breed Cisco® exam study guide that focuses specifically on the objectives for the CCNP® TSHOOT exam. Senior instructor and best-selling author Kevin Wallace shares preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills. Material is presented in a concise manner, focusing on increasing your understanding and retention of exam topics. CCNP TSHOOT 642-832 Official Certification Guide presents you with an organized test preparation routine through the use of proven series elements and techniques. “Do I Know This Already?” quizzes open each chapter and enable you to decide how much time you need to spend on each section. Exam topic lists make referencing easy. Chapter-ending Exam Preparation Tasks sections help drill you on key concepts you must know thoroughly. Well regarded for its level of detail, assessment features, and challenging review questions and exercises, this official study guide helps you master the concepts and techniques that will enable you to succeed on the exam the first time. CCNP SWITCH 642-813 Official Certification Guide is part of a recommended learning path from Cisco that includes simulation and hands-on training from authorized Cisco Learning Partners and self-study products from Cisco Press. To find out more about instructor-led training, e-learning, and hands-on instruction offered by authorized Cisco Learning Partners worldwide, please visit www.cisco.com/go/authorizedtraining. The official study guide helps you master all the topics on the CCNP TSHOOT exam, including Common network maintenance tasks and tools Troubleshooting models Cisco IOS® troubleshooting commands and features Troubleshooting Cisco Catalyst® Switches and STP Troubleshooting BGP, OSPF, and EIGRP routing protocols Route redistribution, security, and router performance troubleshooting IP services and IP communications troubleshooting IPv6 troubleshooting Large enterprise network troubleshooting This volume is part of the Official Certification Guide Series from Cisco Press. Books in this series provide officially developed exam preparation materials that offer assessment, review, and practice to help Cisco Career Certification candidates identify weaknesses, concentrate their study efforts, and enhance their confidence as exam day nears.

Download or read book LAN Switching and Wireless CCNA Exploration Companion Guide written by Wayne Lewis and published by Cisco Press. This book was released on 2008-04-28 with total page 599 pages. Available in PDF, EPUB and Kindle. Book excerpt: LAN Switching and Wireless CCNA Exploration Companion Guide Wayne Lewis, Ph.D. LAN Switching and Wireless, CCNA Exploration Companion Guide is the official supplemental textbook for the LAN Switching and Wireless course in the Cisco Networking Academy CCNA® Exploration curriculum version 4. This course provides a comprehensive approach to learning the technologies and protocols needed to design and implement a converged switched network. The Companion Guide, written and edited by a Networking Academy instructor, is designed as a portable desk reference to use anytime, anywhere. The book’s features reinforce the material in the course to help you focus on important concepts and organize your study time for exams. New and improved features help you study and succeed in this course: Chapter objectives: Review core concepts by answering the questions listed at the beginning of each chapter. Key terms: Refer to the updated lists of networking vocabulary introduced and turn to the highlighted terms in context in each chapter. Glossary: Consult the all-new comprehensive glossary with more than 190 terms. Check Your Understanding questions and answer key: Evaluate your readiness with the updated end-of-chapter questions that match the style of questions you see on the online course quizzes. The answer key explains each answer. Challenge questions and activities: Strive to ace more challenging review questions and activities designed to prepare you for the complex styles of questions you might see on the CCNA exam. The answer key explains each answer. Wayne Lewis is the Cisco Academy Manager for the Pacific Center for Advanced Technology Training (PCATT), based at Honolulu Community College. How To: Look for this icon to study the steps that you need to learn to perform certain tasks. Packet Tracer Activities: Explore networking concepts in activities interspersed throughout some chapters using Packet Tracer v4.1 developed by Cisco. The files for these activities are on the accompanying CD-ROM. Also available for the LAN Switching and Wireless course: LAN Switching and Wireless, CCNA Exploration Labs and Study Guide ISBN-10: 1-58713-202-8 ISBN-13: 978-1-58713-202-5 Companion CD-ROM **See instructions within the ebook on how to get access to the files from the CD-ROM that accompanies this print book.** The CD-ROM provides many useful tools and information to support your education: Packet Tracer Activity exercise files A Guide to Using a Networker’s Journal booklet Taking Notes: A .txt file of the chapter objectives More IT Career Information Tips on Lifelong Learning in Networking This book is part of the Cisco Networking Academy Series from Cisco Press®. Books in this series support and complement the Cisco Networking online curriculum.

Download or read book Video Over IP written by Wes Simpson and published by Taylor & Francis. This book was released on 2006 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text provides what is needed to choose the way to transfer video over a network. It is presented in an easy-to-read format, with comparison charts provided to help understand the benefits and drawbacks of different technologies for a variety of practical applications.

Download or read book CVOICE 8 0 written by Andrew Froehlich and published by John Wiley & Sons. This book was released on 2011-10-11 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: VoIP and convergence are hot topics, and the CVOICE 8.0 exam targets candidates looking to pass Exam 642-437 and pursue their CCNP Voice certification. Companies continue to add VoIP service at a record pace, and network administrators are ramping up their skills. This new member of the Sybex Study Guide series covers everything you’ll need to know to pass the certification exam. VoIP (Voice over IP) is rapidly becoming a preferred solution for companies, and Cisco has responded to the need with a new certification to assure proficiency in VoIP technology Prepares IT professionals for the CVOICE 8.0 exam and includes a CD with the Sybex Test Engine, flashcards, and the Glossary in PDF format. Covers gateway components, dial plans, basic operation and components of VoIP, how to implement a gateway, the function and interoperation of gatekeepers, how to implement an IP-to-IP gateway, and more Administrators of Cisco VoIP networks will find all the essential tools for CVOICE exam success in CVOICE 8.0: Implementing Cisco Unified Communications Voice over IP and QoS v8.0 Study Guide.

Download or read book Practical Guide to LTE A VoLTE and IoT written by Ayman Elnashar and published by John Wiley & Sons. This book was released on 2018-06-19 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Essential reference providing best practice of LTE-A, VoLTE, and IoT Design/deployment/Performance and evolution towards 5G This book is a practical guide to the design, deployment, and performance of LTE-A, VoLTE/IMS and IoT. A comprehensive practical performance analysis for VoLTE is conducted based on field measurement results from live LTE networks. Also, it provides a comprehensive introduction to IoT and 5G evolutions. Practical aspects and best practice of LTE-A/IMS/VoLTE/IoT are presented. Practical aspects of LTE-Advanced features are presented. In addition, LTE/LTE-A network capacity dimensioning and analysis are demonstrated based on live LTE/LTE-A networks KPIs. A comprehensive foundation for 5G technologies is provided including massive MIMO, eMBB, URLLC, mMTC, NGCN and network slicing, cloudification, virtualization and SDN. Practical Guide to LTE-A, VoLTE and IoT: Paving the Way Towards 5G can be used as a practical comprehensive guide for best practices in LTE/LTE-A/VoLTE/IoT design, deployment, performance analysis and network architecture and dimensioning. It offers tutorial introduction on LTE-A/IoT/5G networks, enabling the reader to use this advanced book without the need to refer to more introductory texts. Offers a complete overview of LTE and LTE-A, IMS, VoLTE and IoT and 5G Introduces readers to IP Multimedia Subsystems (IMS)Performs a comprehensive evaluation of VoLTE/CSFB Provides LTE/LTE-A network capacity and dimensioning Examines IoT and 5G evolutions towards a super connected world Introduce 3GPP NB-IoT evolution for low power wide area (LPWA) network Provide a comprehensive introduction for 5G evolution including eMBB, URLLC, mMTC, network slicing, cloudification, virtualization, SDN and orchestration Practical Guide to LTE-A, VoLTE and IoT will appeal to all deployment and service engineers, network designers, and planning and optimization engineers working in mobile communications. Also, it is a practical guide for R&D and standardization experts to evolve the LTE/LTE-A, VoLTE and IoT towards 5G evolution.

Download or read book CCNA Voice Study Guide written by Andrew Froehlich and published by John Wiley & Sons. This book was released on 2010-07-01 with total page 679 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ultimate guide to the new CCNA voice network administrator certification exam The new CCNA Voice exam tests candidates on their ability to implement a Cisco VoIP solution. Network administrators of voice systems will appreciate that the CCNA Voice Study Guide focuses completely on the information required by the exam. Along with hands-on labs and an objective map showing where each objective is covered, this guide includes a CD with the Sybex Test Engine, flashcards, and entire book in PDF format. The new CCNA Voice certification will be valuable for administrators of voice network systems using Cisco VoIP solutions From Sybex, the leading CCNA publisher, this guide offers in-depth coverage of every exam objective and the technology developed by Cisco for VoIP systems Covers the components of the Cisco Unified Communications Architecture as well as PSTN and VoIP components and technologies Shows how to configure gateways, voice ports, and dial peers Demonstrates how to configure a Cisco network to support VoIP and implement voicemail CD-ROM includes the Sybex Test Engine, flashcards, and entire book in PDF format CCNA Voice Study Guide will thoroughly prepare candidates for the new CCNA Voice certification. Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.

Download or read book Understanding Voice Over IP Technology written by Nicholas Wittenberg and published by Cengage Learning. This book was released on 2009-02-19 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding Voice Over IP Technology provides students with the in-depth knowledge of Voice over IP technology, or making telephone calls over data networks such as the Internet, has now reached the tipping point, and is expected to eventually become the standard telephone technology. The text is flexible enough to be used in the classroom, at home, and in the workplace. Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version.